Dokku Application Configuration

Dokku Application Configuration#

After creating your app, before or after you’ve deployed it you can configure it with several dokku commands.

Environment variables#

It’s often good practice to use a .env file with environment variables for your app in several situations. Examples include:

  • database credentials

  • url prefixes

It is ideal to include a .env.example file in your repo, potentially with comments about what the values should be in cases where they are omitted, but leave the .env out of the repository and add it to .gitignore to prevent accidental commit.

Packages exist for loading environment variables from .env automatically like the python-dotenv package.

Environment variables on Dokku#

When you launch your app on dokku, adding the environment configuration is an additional step:

# replace my-app with your app name
#  each environment KEY=VALUE pair can be provided on the args
# this will apply the config and restart your app
dokku config:set my-app "SOME_KEY=SOME_VALUE" "SOME_KEY2=SOME_VALUE2"

# review environment variables for your app
dokku config:show my-app

# unset a previously set environment variable
dokku config:unset my-app SOME_KEY
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